Nirvana Fans: How do you feel about Dave Grohl and his post-Nirvana musical endeavours?

As much as i love Nirvana, it wouldn't have been fair to expect Dave to just throw in the towel after Kurt died. i do not think that Nirvana could have went on without Kurt, though, and i think Dave made the right choice when he decided to form a new band. i also think Krist made a very valiant and selfless decision when he decided not to join the Foo Fighters even though Dave had invited him in order to keep people from thinking the Foo Fighters were just a new incarnation of Nirvana without Kurt.